// TODO: Move credits array to HealthComponent.
void HealthComponent::ScaleDamageAccounts(float healthRestored) {
if (healthRestored <= 0.0f) return;
// Get total damage account and remember relevant clients.
float totalAccreditedDamage = 0.0f;
std::vector<Entity*> relevantClients;
ForEntities<ClientComponent>([&](Entity& other, ClientComponent& client) {
float clientDamage = entity.oldEnt->credits[other.oldEnt->s.number].value;
if (clientDamage > 0.0f) {
totalAccreditedDamage += clientDamage;
relevantClients.push_back(&other);
}
});
if (relevantClients.empty()) return;
// Calculate account scale factor.
float scale;
if (healthRestored < totalAccreditedDamage) {
scale = (totalAccreditedDamage - healthRestored) / totalAccreditedDamage;
healthLogger.Debug("Scaling damage accounts of %i client(s) by %.2f.",
relevantClients.size(), scale);
} else {
// Clear all accounts.
scale = 0.0f;
healthLogger.Debug("Clearing damage accounts of %i client(s).", relevantClients.size());
}
// Scale down or clear damage accounts.
for (Entity* other : relevantClients) {
entity.oldEnt->credits[other->oldEnt->s.number].value *= scale;
}
}
float ArmorComponent::GetLocationalDamageMod(float angle, float height) {
class_t pcl = (class_t)entity.oldEnt->client->ps.stats[STAT_CLASS];
bool crouching = (entity.oldEnt->client->ps.pm_flags & PMF_DUCKED);
for (int regionNum = 0; regionNum < g_numDamageRegions[pcl]; regionNum++) {
damageRegion_t *region = &g_damageRegions[pcl][regionNum];
// Ignore the non-locational pseudo region.
if (region->nonlocational) continue;
// Crouch state must match.
if (region->crouch != crouching) continue;
// Height must be within given range.
if (height < region->minHeight || height > region->maxHeight) continue;
// Angle must be within given range.
if ((region->minAngle <= region->maxAngle && (angle < region->minAngle || angle > region->maxAngle)) ||
(region->minAngle > region->maxAngle && (angle > region->maxAngle && angle < region->minAngle))) {
continue;
}
armorLogger.Debug("Locational damage modifier of %.2f found for angle %.2f and height %.2f (%s).",
region->modifier, angle, height, region->name);
return region->modifier;
}
armorLogger.Debug("Locational damage modifier for angle %.2f and height %.2f not found.",
angle, height);
return 1.0f;
}
void IgnitableComponent::ConsiderStop(int timeDelta) {
if (!onFire) return;
// Don't stop freshly (re-)ignited fires.
if (igniteTime + MIN_BURN_TIME > level.time) {
fireLogger.Debug("(Re-)Ignited %i ms ago, skipping stop check.", level.time - igniteTime);
return;
}
float burnStopChance = STOP_CHANCE;
// Lower burn stop chance if there are other burning entities nearby.
ForEntities<IgnitableComponent>([&](Entity &other, IgnitableComponent &ignitable){
if (&other == &entity) return;
if (!ignitable.onFire) return;
if (G_Distance(other.oldEnt, entity.oldEnt) > STOP_RADIUS) return;
float frac = G_Distance(entity.oldEnt, other.oldEnt) / STOP_RADIUS;
float mod = frac * 1.0f + (1.0f - frac) * STOP_CHANCE;
burnStopChance *= mod;
});
// Attempt to stop burning.
if (random() < burnStopChance) {
fireLogger.Debug("Stopped burning (chance was %.0f%%)", burnStopChance * 100.0f);
entity.Extinguish(0);
return;
} else {
fireLogger.Debug("Didn't stop burning (chance was %.0f%%)", burnStopChance * 100.0f);
}
}
void IgnitableComponent::ConsiderSpread(int timeDelta) {
if (!onFire) return;
if (level.time < spreadAt) return;
fireLogger.Notice("Trying to spread.");
ForEntities<IgnitableComponent>([&](Entity &other, IgnitableComponent &ignitable){
if (&other == &entity) return;
// Don't re-ignite.
if (ignitable.onFire) return;
// TODO: Use LocationComponent.
float distance = G_Distance(other.oldEnt, entity.oldEnt);
if (distance > SPREAD_RADIUS) return;
float distanceFrac = distance / SPREAD_RADIUS;
float distanceMod = 1.0f - distanceFrac;
float spreadChance = distanceMod;
if (random() < spreadChance) {
if (G_LineOfSight(entity.oldEnt, other.oldEnt) && other.Ignite(fireStarter)) {
fireLogger.Notice("Ignited a neighbour, chance to do so was %.0f%%.",
spreadChance*100.0f);
}
}
});
// Don't spread again until re-ignited.
spreadAt = INT_MAX;
}
void IgnitableComponent::HandleIgnite(gentity_t* fireStarter) {
if (!fireStarter) {
// TODO: Find out why this happens.
fireLogger.Notice("Received ignite message with no fire starter.");
}
if (level.time < immuneUntil) {
fireLogger.Debug("Not ignited: Immune against fire.");
return;
}
// Refresh ignite time even if already burning.
igniteTime = level.time;
if (!onFire) {
onFire = true;
this->fireStarter = fireStarter;
fireLogger.Debug("Ignited.");
} else {
if (alwaysOnFire && !this->fireStarter) {
// HACK: Igniting an alwaysOnFire entity will initialize the fire starter.
this->fireStarter = fireStarter;
fireLogger.Debug("Firestarter initialized.");
} else {
fireLogger.Debug("Re-Ignited.");
}
}
}
bool TurretComponent::TargetValid(Entity& target, bool newTarget) {
if (!target.Get<ClientComponent>() ||
target.Get<SpectatorComponent>() ||
Entities::IsDead(target) ||
(target.oldEnt->flags & FL_NOTARGET) ||
!Entities::OnOpposingTeams(entity, target) ||
G_Distance(entity.oldEnt, target.oldEnt) > range ||
!trap_InPVS(entity.oldEnt->s.origin, target.oldEnt->s.origin)) {
if (!newTarget) {
turretLogger.Verbose("Target lost: Out of range or eliminated.");
}
return false;
}
// New targets require a line of sight.
if (G_LineOfFire(entity.oldEnt, target.oldEnt)) {
lastLineOfSightToTarget = level.time;
} else if (newTarget) {
return false;
}
// Give up on an existing target if there was no line of sight for a while.
if (lastLineOfSightToTarget + GIVEUP_TARGET_TIME <= level.time) {
turretLogger.Verbose("Giving up on target: No line of sight for %d ms.",
level.time - lastLineOfSightToTarget
);
return false;
}
return true;
}
void IgnitableComponent::ConsiderStop(int timeDelta) {
if (!onFire) return;
// Don't stop freshly (re-)ignited fires.
if (igniteTime + MIN_BURN_TIME > level.time) {
fireLogger.DoDebugCode([&]{
int elapsed = level.time - igniteTime;
int remaining = MIN_BURN_TIME - elapsed;
fireLogger.Debug("Burning for %.1fs, skipping stop check for another %.1fs.",
(float)elapsed/1000.0f, (float)remaining/1000.0f);
});
return;
}
float averagePostMinBurnTime = BASE_AVERAGE_BURN_TIME - MIN_BURN_TIME;
// Increase average burn time dynamically for burning entities in range.
ForEntities<IgnitableComponent>([&](Entity &other, IgnitableComponent &ignitable){
if (&other == &entity) return;
if (!ignitable.onFire) return;
// TODO: Use LocationComponent.
float distance = G_Distance(other.oldEnt, entity.oldEnt);
if (distance > EXTRA_BURN_TIME_RADIUS) return;
float distanceFrac = distance / EXTRA_BURN_TIME_RADIUS;
float distanceMod = 1.0f - distanceFrac;
averagePostMinBurnTime += EXTRA_AVERAGE_BURN_TIME * distanceMod;
});
// The burn stop chance follows an exponential distribution.
float lambda = 1.0f / averagePostMinBurnTime;
float burnStopChance = 1.0f - std::exp(-1.0f * lambda * (float)timeDelta);
float averageTotalBurnTime = averagePostMinBurnTime + (float)MIN_BURN_TIME;
// Attempt to stop burning.
if (random() < burnStopChance) {
fireLogger.Notice("Stopped burning after %.1fs, target average lifetime was %.1fs.",
(float)(level.time - igniteTime) / 1000.0f, averageTotalBurnTime / 1000.0f);
entity.Extinguish(0);
return;
} else {
fireLogger.Debug("Burning for %.1fs, target average lifetime is %.1fs.",
(float)(level.time - igniteTime) / 1000.0f, averageTotalBurnTime / 1000.0f);
}
}
void TurretComponent::ResetDirection() {
directionToTarget = baseDirection;
turretLogger.Verbose("Target direction reset. New direction: %s.",
Utility::Print(directionToTarget)
);
}
void AlienBuildableComponent::HandleDie(gentity_t* killer, meansOfDeath_t meansOfDeath) {
entity.oldEnt->powered = false;
// Warn if in main base and there's an overmind.
gentity_t *om;
if ((om = G_ActiveOvermind()) && om != entity.oldEnt && level.time > om->warnTimer
&& G_InsideBase(entity.oldEnt, true) && G_IsWarnableMOD(meansOfDeath)) {
om->warnTimer = level.time + ATTACKWARN_NEARBY_PERIOD;
G_BroadcastEvent(EV_WARN_ATTACK, 0, TEAM_ALIENS);
Beacon::NewArea(BCT_DEFEND, entity.oldEnt->s.origin, entity.oldEnt->buildableTeam);
}
// Set blast timer.
int blastDelay = 0;
if (entity.oldEnt->spawned && GetBuildableComponent().GetHealthComponent().Health() /
GetBuildableComponent().GetHealthComponent().MaxHealth() > -1.0f) {
blastDelay += GetBlastDelay();
}
alienBuildableLogger.Debug("Alien buildable dies, will blast in %i ms.", blastDelay);
GetBuildableComponent().SetState(BuildableComponent::PRE_BLAST);
GetBuildableComponent().REGISTER_THINKER(Blast, ThinkingComponent::SCHEDULER_BEFORE, blastDelay);
}
void ResourceStorageComponent::HandleDie(gentity_t* killer, meansOfDeath_t meansOfDeath) {
// TODO: Add TeamComponent and/or Utility::Team.
team_t team = entity.oldEnt->buildableTeam;
float storedFraction = GetStoredFraction();
// Removes some of the owner's team's build points, proportional to the amount this structure
// acquired and the amount of health lost (before deconstruction).
float loss = (1.0f - entity.oldEnt->deconHealthFrac) * storedFraction *
level.team[team].buildPoints * g_buildPointLossFraction.value;
resourceStorageLogger.Notice(
"A resource storage died, removing %.0f BP from the team's pool "
"(%.1f × %.0f%% stored × %.0f%% health lost × %.0f total).",
loss, g_buildPointLossFraction.value, 100.0f * storedFraction,
100.0f * (1.0f - entity.oldEnt->deconHealthFrac), level.team[team].buildPoints
);
G_ModifyBuildPoints(team, -loss);
// Main structures keep their account of acquired build points across lifecycles, it's saved
// in a per-team variable and copied over to the ResourceStorageComponent whenever it's modified.
if (!entity.Get<MainBuildableComponent>()) {
G_ModifyTotalBuildPointsAcquired(team, -acquiredBuildPoints);
}
acquiredBuildPoints = 0.0f;
}
/**
* @brief Predict the total efficiency gain for a team when a miner is constructed at a given point.
* @return Predicted efficiency delta in percent points.
* @todo Consider RGS set for deconstruction.
*/
float G_RGSPredictEfficiencyDelta(vec3_t origin, team_t team) {
float delta = G_RGSPredictOwnEfficiency(origin);
buildpointLogger.Debug("Predicted efficiency of new miner itself: %f.", delta);
ForEntities<MiningComponent>([&] (Entity& miner, MiningComponent& miningComponent) {
if (G_Team(miner.oldEnt) != team) return;
delta += RGSPredictEfficiencyLoss(miner, origin);
});
buildpointLogger.Debug("Predicted efficiency delta: %f. Build point delta: %f.", delta,
delta * g_buildPointBudgetPerMiner.value);
return delta;
}
// TODO: Consider location as well as direction when both given.
void KnockbackComponent::HandleDamage(float amount, gentity_t* source, Util::optional<Vec3> location,
Util::optional<Vec3> direction, int flags, meansOfDeath_t meansOfDeath) {
if (!(flags & DAMAGE_KNOCKBACK)) return;
if (amount <= 0.0f) return;
if (!direction) {
knockbackLogger.Warn("Received damage message with knockback flag set but no direction.");
return;
}
if (Math::Length(direction.value()) == 0.0f) {
knockbackLogger.Warn("Attempt to do knockback with null vector direction.");
return;
}
// TODO: Remove dependency on client.
gclient_t *client = entity.oldEnt->client;
assert(client);
// Check for immunity.
if (client->noclip) return;
if (client->sess.spectatorState != SPECTATOR_NOT) return;
float mass = (float)BG_Class(client->ps.stats[ STAT_CLASS ])->mass;
if (mass <= 0.0f) {
knockbackLogger.Warn("Attempt to do knockback against target with no mass, assuming normal mass.");
mass = KNOCKBACK_NORMAL_MASS;
}
float massMod = Math::Clamp(KNOCKBACK_NORMAL_MASS / mass, KNOCKBACK_MIN_MASSMOD, KNOCKBACK_MAX_MASSMOD);
float strength = amount * DAMAGE_TO_KNOCKBACK * massMod;
// Change client velocity.
Vec3 clientVelocity = Vec3::Load(client->ps.velocity);
clientVelocity += Math::Normalize(direction.value()) * strength;
clientVelocity.Store(client->ps.velocity);
// Set pmove timer so that the client can't cancel out the movement immediately.
if (!client->ps.pm_time) {
client->ps.pm_time = KNOCKBACK_PMOVE_TIME;
client->ps.pm_flags |= PMF_TIME_KNOCKBACK;
}
knockbackLogger.Debug("Knockback: client: %i, strength: %.1f (massMod: %.1f).",
entity.oldEnt->s.number, strength, massMod);
}
void HealthComponent::SetHealth(float health) {
Math::Clamp(health, FLT_EPSILON, maxHealth);
healthLogger.Debug("Changing health: %3.1f → %3.1f.", this->health, health);
ScaleDamageAccounts(health - this->health);
HealthComponent::health = health;
}
float ArmorComponent::GetNonLocationalDamageMod() {
class_t pcl = (class_t)entity.oldEnt->client->ps.stats[STAT_CLASS];
for (int regionNum = 0; regionNum < g_numDamageRegions[pcl]; regionNum++) {
damageRegion_t *region = &g_damageRegions[pcl][regionNum];
if (!region->nonlocational) continue;
armorLogger.Debug("Found non-locational damage modifier of %.2f.", region->modifier);
return region->modifier;
}
armorLogger.Debug("No non-locational damage modifier found.");
return 1.0f;
}
void TurretComponent::ResetPitch() {
Vec3 targetRelativeAngles = relativeAimAngles;
targetRelativeAngles[PITCH] = 0.0f;
directionToTarget = RelativeAnglesToDirection(targetRelativeAngles);
turretLogger.Debug("Target pitch reset. New direction: %s.", directionToTarget);
}
void HealthComponent::SetMaxHealth(float maxHealth, bool scaleHealth) {
ASSERT_GT(maxHealth, 0.0f);
healthLogger.Debug("Changing maximum health: %3.1f → %3.1f.", this->maxHealth, maxHealth);
HealthComponent::maxHealth = maxHealth;
if (scaleHealth) SetHealth(health * (this->maxHealth / maxHealth));
}
void TurretComponent::LowerPitch() {
Vec3 targetRelativeAngles = relativeAimAngles;
targetRelativeAngles[PITCH] = PITCH_CAP;
directionToTarget = RelativeAnglesToDirection(targetRelativeAngles);
turretLogger.Debug("Target pitch lowered. New direction: %s.", directionToTarget);
}
void IgnitableComponent::DamageSelf(int timeDelta) {
if (!onFire) return;
float damage = SELF_DAMAGE * timeDelta * 0.001f;
if (entity.Damage(damage, fireStarter, {}, {}, 0, MOD_BURN)) {
fireLogger.Debug("Self burn damage of %.1f (%.1f/s) was dealt.", damage, SELF_DAMAGE);
}
}
void IgnitableComponent::DamageArea(int timeDelta) {
if (!onFire) return;
float damage = SPLASH_DAMAGE * timeDelta * 0.001f;
if (G_SelectiveRadiusDamage(entity.oldEnt->s.origin, fireStarter, damage, SPLASH_DAMAGE_RADIUS,
entity.oldEnt, MOD_BURN, TEAM_NONE)) {
fireLogger.Debug("Area burn damage of %.1f (%.1f/s) was dealt.", damage, SPLASH_DAMAGE);
}
}
void TurretComponent::RemoveTarget() {
if (target) {
// TODO: Decrease tracked-by counter for the target.
turretLogger.Verbose("Target removed.");
}
target = nullptr;
lastLineOfSightToTarget = 0;
}
/**
* @brief Predict the efficiecy loss of an existing miner if another one is constructed closeby.
* @return Efficiency loss as negative value.
*/
static float RGSPredictEfficiencyLoss(Entity& miner, vec3_t newMinerOrigin) {
float distance = Distance(miner.oldEnt->s.origin, newMinerOrigin);
float oldPredictedEfficiency = miner.Get<MiningComponent>()->Efficiency(true);
float newPredictedEfficiency = oldPredictedEfficiency * MiningComponent::InterferenceMod(distance);
float efficiencyLoss = newPredictedEfficiency - oldPredictedEfficiency;
buildpointLogger.Debug("Predicted efficiency loss of existing miner: %f - %f = %f.",
oldPredictedEfficiency, newPredictedEfficiency, efficiencyLoss);
return efficiencyLoss;
}
void IgnitableComponent::HandleExtinguish(int immunityTime) {
if (!onFire) return;
onFire = false;
immuneUntil = level.time + immunityTime;
if (alwaysOnFire) {
entity.FreeAt(DeferredFreeingComponent::FREE_BEFORE_THINKING);
}
fireLogger.Debug("Extinguished.");
}
void IgnitableComponent::HandleIgnite(gentity_t* fireStarter) {
if (!fireStarter) {
// TODO: Find out why this happens.
fireLogger.Notice("Received ignite message with no fire starter.");
}
if (level.time < immuneUntil) {
fireLogger.Debug("Not ignited: Immune against fire.");
return;
}
// Start burning on initial ignition.
if (!onFire) {
onFire = true;
this->fireStarter = fireStarter;
fireLogger.Notice("Ignited.");
} else {
if (alwaysOnFire && !this->fireStarter) {
// HACK: Igniting an alwaysOnFire entity will initialize the fire starter.
this->fireStarter = fireStarter;
fireLogger.Debug("Firestarter set.");
} else {
fireLogger.Debug("Re-ignited.");
}
}
// Refresh ignite time even if already burning.
igniteTime = level.time;
// The spread delay follows a normal distribution: More likely to spread early than late.
int spreadTarget = level.time + (int)std::abs(normalDistribution(randomGenerator));
// Allow re-ignition to update the spread delay to a lower value.
if (spreadTarget < spreadAt) {
fireLogger.DoNoticeCode([&]{
int newDelay = spreadTarget - level.time;
if (spreadAt == INT_MAX) {
fireLogger.Notice("Spread delay set to %.1fs.", newDelay * 0.001f);
} else {
int oldDelay = spreadAt - level.time;
fireLogger.Notice("Spread delay updated from %.1fs to %.1fs.",
oldDelay * 0.001f, newDelay * 0.001f);
}
});
spreadAt = spreadTarget;
}
}
void IgnitableComponent::ConsiderSpread(int timeDelta) {
if (!onFire) return;
ForEntities<IgnitableComponent>([&](Entity &other, IgnitableComponent &ignitable){
if (&other == &entity) return;
// TODO: Use LocationComponent.
float chance = 1.0f - G_Distance(entity.oldEnt, other.oldEnt) / SPREAD_RADIUS;
if (chance <= 0.0f) return; // distance > spread radius
if (random() < chance) {
if (G_LineOfSight(entity.oldEnt, other.oldEnt) && other.Ignite(fireStarter)) {
fireLogger.Debug("(Re-)Ignited a neighbour (chance was %.0f%%)", chance * 100.0f);
} else {
fireLogger.Debug("Tried to ignite a non-ignitable or non-LOS neighbour (chance was %.0f%%)",
chance * 100.0f);
}
} else {
fireLogger.Debug("Didn't try to ignite a neighbour (chance was %.0f%%)", chance * 100.0f);
}
});
}
void TurretComponent::TrackEntityTarget() {
if (!target) return;
Vec3 oldDirectionToTarget = directionToTarget;
Vec3 targetOrigin = Vec3::Load(target->s.origin);
Vec3 muzzle = Vec3::Load(entity.oldEnt->s.pos.trBase);
directionToTarget = Math::Normalize(targetOrigin - muzzle);
if (Math::DistanceSq(directionToTarget, oldDirectionToTarget) > 0.0f) {
turretLogger.Debug("Following an entity target. New direction: %s.", directionToTarget);
}
}
void SpikerComponent::HandleDamage(float amount, gentity_t *source, Util::optional<Vec3> location,
Util::optional<Vec3> direction, int flags, meansOfDeath_t meansOfDeath) {
if (!GetAlienBuildableComponent().GetBuildableComponent().Active()) {
return;
}
// Shoot if there is a viable target.
if (lastExpectedDamage > 0.0f) {
logger.Verbose("Spiker #%i was hurt while an enemy is close enough to also get hurt, so "
"go eye for an eye.", entity.oldEnt->s.number);
Fire();
}
}
void HealthComponent::HandleHeal(float amount, gentity_t* source) {
if (health <= 0.0f) return;
if (health >= maxHealth) return;
// Only heal up to maximum health.
amount = std::min(amount, maxHealth - health);
if (amount <= 0.0f) return;
healthLogger.Debug("Healing: %3.1f (%3.1f → %3.1f)", amount, health, health + amount);
health += amount;
ScaleDamageAccounts(amount);
}
float ResourceStorageComponent::GetStoredFraction() {
// TODO: Add TeamComponent and/or Utility::Team.
team_t team = entity.oldEnt->buildableTeam;
if (!level.team[team].acquiredBuildPoints) return 1.0f;
// The stored fraction is equal to the acquired fraction.
float storedFraction = acquiredBuildPoints / level.team[team].acquiredBuildPoints;
if (storedFraction < 0.0f || storedFraction > 1.0f + LINE_DISTANCE_EPSILON) {
resourceStorageLogger.Warn(
"A resource storage stores an invalid fraction of all build points: %.1f", storedFraction
);
}
return storedFraction;
}
// TODO: Move this to the client side.
void AlienBuildableComponent::CreepRecede(int timeDelta) {
alienBuildableLogger.Debug("Starting creep recede.");
G_AddEvent(entity.oldEnt, EV_BUILD_DESTROY, 0);
if (entity.oldEnt->spawned) {
entity.oldEnt->s.time = -level.time;
} else {
entity.oldEnt->s.time = -(level.time - (int)(
(float)CREEP_SCALEDOWN_TIME *
(1.0f - ((float)(level.time - entity.oldEnt->creationTime) /
(float)BG_Buildable(entity.oldEnt->s.modelindex)->buildTime)))
);
}
// Remove buildable when done.
GetBuildableComponent().REGISTER_THINKER(Remove, ThinkingComponent::SCHEDULER_AFTER, CREEP_SCALEDOWN_TIME);
GetBuildableComponent().GetThinkingComponent().UnregisterActiveThinker();
}
Entity* TurretComponent::FindEntityTarget(std::function<bool(Entity&, Entity&)> CompareTargets) {
// Delete old target.
RemoveTarget();
// Search best target.
// TODO: Iterate over all valid targets, do not assume they have to be clients.
ForEntities<ClientComponent>([&](Entity& candidate, ClientComponent& clientComponent) {
if (TargetValid(candidate, true)) {
if (!target || CompareTargets(candidate, *target->entity)) {
target = candidate.oldEnt;
}
}
});
if (target) {
// TODO: Increase tracked-by counter for a new target.
turretLogger.Verbose("Target acquired.");
}
return target ? target->entity : nullptr;
}